Ionic liquid-supported synthesis of CeO                         2                          nanoparticles and its enhanced ethanol gas sensing properties

Dung Van Dao; Thuy T.D. Nguyen; Sanjit M. Majhi; Ganpurev Adilbish; Hu Jun Lee; Yeon Tae Yu; In Hwan Lee

doi:10.1016/j.matchemphys.2019.03.025

Ionic liquid-supported synthesis of CeO ₂ nanoparticles and its enhanced ethanol gas sensing properties

Dung Van Dao
, Thuy T.D. Nguyen
, Sanjit M. Majhi
, Ganpurev Adilbish
, Hu Jun Lee
, Yeon Tae Yu^*
, In Hwan Lee

^*Corresponding author for this work

Information Materials Engineering

Research output: Contribution to journal › Journal article › peer-review

42 Scopus citations

Abstract

Reducing the particle size of ceria nanostrutures could provide an efficient approach to improve gas sensing properties thereof. Here, we synthesized small CeO ₂ nanoparticles (3–5 nm) in the support of [EMIM][Tf ₂ N] ionic liquid. The obtained CeO ₂ nanoparticles showed relatively large surface areas (68.29 m ³ /g) and especially high content of Ce ³⁺ ions (13.5%), which increase the chemisorption of reagents and oxygen leading on enhancing gas sensing performance. Namely, at the optimal operating temperature of 400 °C, the gas response of synthesized CeO ₂ sensor to 100 ppm of ethanol was 2.3, which was 1.83 times higher than that of commercial one (1.26). The superior gas sensing mechanism of synthesized CeO ₂ was also discussed on the basis of the electrical resistance change. The present work could provide novel pathway to synthesize ceria and related materials, which would be possibly expected to be potential candidates for gas sensing, by the use of ionic liquid hereafter.

Original language	English
Pages (from-to)	1-8
Number of pages	8
Journal	Materials Chemistry and Physics
Volume	231
DOIs	https://doi.org/10.1016/j.matchemphys.2019.03.025
State	Published - 2019.06.1

Keywords

Ceria
Gas sensor
Ionic liquid
Nanoparticles

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Physics & Astronomy

Access to Document

10.1016/j.matchemphys.2019.03.025

Cite this

Van Dao, D., Nguyen, T. T. D., Majhi, S. M., Adilbish, G., Lee, H. J., Yu, Y. T., & Lee, I. H. (2019). Ionic liquid-supported synthesis of CeO ₂ nanoparticles and its enhanced ethanol gas sensing properties Materials Chemistry and Physics, 231, 1-8. https://doi.org/10.1016/j.matchemphys.2019.03.025

@article{683d7f29947b4bc198b371982c75cdba,

title = " Ionic liquid-supported synthesis of CeO 2 nanoparticles and its enhanced ethanol gas sensing properties ",

abstract = " Reducing the particle size of ceria nanostrutures could provide an efficient approach to improve gas sensing properties thereof. Here, we synthesized small CeO 2 nanoparticles (3–5 nm) in the support of [EMIM][Tf 2 N] ionic liquid. The obtained CeO 2 nanoparticles showed relatively large surface areas (68.29 m 3 /g) and especially high content of Ce 3+ ions (13.5\%), which increase the chemisorption of reagents and oxygen leading on enhancing gas sensing performance. Namely, at the optimal operating temperature of 400 °C, the gas response of synthesized CeO 2 sensor to 100 ppm of ethanol was 2.3, which was 1.83 times higher than that of commercial one (1.26). The superior gas sensing mechanism of synthesized CeO 2 was also discussed on the basis of the electrical resistance change. The present work could provide novel pathway to synthesize ceria and related materials, which would be possibly expected to be potential candidates for gas sensing, by the use of ionic liquid hereafter.",

keywords = "Ceria, Gas sensor, Ionic liquid, Nanoparticles",

author = "\{Van Dao\}, Dung and Nguyen, \{Thuy T.D.\} and Majhi, \{Sanjit M.\} and Ganpurev Adilbish and Lee, \{Hu Jun\} and Yu, \{Yeon Tae\} and Lee, \{In Hwan\}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = jun,

day = "1",

doi = "10.1016/j.matchemphys.2019.03.025",

language = "English",

volume = "231",

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}

Van Dao, D, Nguyen, TTD, Majhi, SM, Adilbish, G, Lee, HJ, Yu, YT & Lee, IH 2019, ' Ionic liquid-supported synthesis of CeO ₂ nanoparticles and its enhanced ethanol gas sensing properties ', Materials Chemistry and Physics, vol. 231, pp. 1-8. https://doi.org/10.1016/j.matchemphys.2019.03.025

Ionic liquid-supported synthesis of CeO ₂ nanoparticles and its enhanced ethanol gas sensing properties . / Van Dao, Dung; Nguyen, Thuy T.D.; Majhi, Sanjit M. et al.
In: Materials Chemistry and Physics, Vol. 231, 01.06.2019, p. 1-8.

Research output: Contribution to journal › Journal article › peer-review

TY - JOUR

T1 - Ionic liquid-supported synthesis of CeO 2 nanoparticles and its enhanced ethanol gas sensing properties

AU - Van Dao, Dung

AU - Nguyen, Thuy T.D.

AU - Majhi, Sanjit M.

AU - Adilbish, Ganpurev

AU - Lee, Hu Jun

AU - Yu, Yeon Tae

AU - Lee, In Hwan

PY - 2019/6/1

Y1 - 2019/6/1

N2 - Reducing the particle size of ceria nanostrutures could provide an efficient approach to improve gas sensing properties thereof. Here, we synthesized small CeO 2 nanoparticles (3–5 nm) in the support of [EMIM][Tf 2 N] ionic liquid. The obtained CeO 2 nanoparticles showed relatively large surface areas (68.29 m 3 /g) and especially high content of Ce 3+ ions (13.5%), which increase the chemisorption of reagents and oxygen leading on enhancing gas sensing performance. Namely, at the optimal operating temperature of 400 °C, the gas response of synthesized CeO 2 sensor to 100 ppm of ethanol was 2.3, which was 1.83 times higher than that of commercial one (1.26). The superior gas sensing mechanism of synthesized CeO 2 was also discussed on the basis of the electrical resistance change. The present work could provide novel pathway to synthesize ceria and related materials, which would be possibly expected to be potential candidates for gas sensing, by the use of ionic liquid hereafter.

AB - Reducing the particle size of ceria nanostrutures could provide an efficient approach to improve gas sensing properties thereof. Here, we synthesized small CeO 2 nanoparticles (3–5 nm) in the support of [EMIM][Tf 2 N] ionic liquid. The obtained CeO 2 nanoparticles showed relatively large surface areas (68.29 m 3 /g) and especially high content of Ce 3+ ions (13.5%), which increase the chemisorption of reagents and oxygen leading on enhancing gas sensing performance. Namely, at the optimal operating temperature of 400 °C, the gas response of synthesized CeO 2 sensor to 100 ppm of ethanol was 2.3, which was 1.83 times higher than that of commercial one (1.26). The superior gas sensing mechanism of synthesized CeO 2 was also discussed on the basis of the electrical resistance change. The present work could provide novel pathway to synthesize ceria and related materials, which would be possibly expected to be potential candidates for gas sensing, by the use of ionic liquid hereafter.

KW - Ceria

KW - Gas sensor

KW - Ionic liquid

KW - Nanoparticles

UR - https://www.scopus.com/pages/publications/85064193232

U2 - 10.1016/j.matchemphys.2019.03.025

DO - 10.1016/j.matchemphys.2019.03.025

M3 - Journal article

AN - SCOPUS:85064193232

SN - 0254-0584

VL - 231

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JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

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